Didn't find a welcome script here(sorry people if I didn't see yours) but here it is just incase you didn't find one or if you don't know how to make this. This script could sorta spam people a bit who have long auto join's. So be aware...
On *:JOIN:#:{
if ($nick == $me) { halt }
else { notice $nick Welcome to $network $+ , $nick hope you have a great time in $chan $+. }
}
Oh, I see I haven't seen any thou lolol